this translation is not very good, I had a lot of trouble with this text being in a dialect I'm not familiar with.
at first I thought it was Nynorsk, but I'm not even sure about that anymore.
so please, if you could help better/correct my translation, please - either send me the corrections in private or add your own translation.

anyway, this is an old troll song written by a Halling guard at Akershus Castle in 1808.